8.5

This reaction has the same number of Oxygen atoms in the reactants as it does in the products.

• TRUE

• FALSE

Tags

NGSS.MS-PS1-5

In what section would you most likely find an element that is a brittle solid at room temperature and is not a good conductor?

• Section 1

• Section 2

• Section 3

• There are no elements that are brittle solids

The following two elements:

• Have similar chemical properties and can be found in Group 7 of the periodic table

• Do not have similar chemical properties and are not in the same group

• Have similar chemical properties and can be found on opposite sides of the periodic table

• Have similar chemical properties and can be found in Group 2 of the periodic table

Tags

NGSS.MS-PS1-1

Most of the elements on the periodic table are___________

• Non-Metals

• Metals

• Gases

• Metaloids

Valence Electrons determine an element's___________________________, While Protons determine an element's____________________________.

• IDENTITY; REACTIVITY

• Both determine reactivity

• REACTIVITY; IDENTITY

• Both determine identity

A researcher began the following reaction with 52.6 grams of sugar and Sulfiric Acid in part A. The final mass of the products in part B would MOST LIKELY be:

• More than 52.6 grams

• Less than 52.6 grams

• Exactly 52.6 grams

• Cannot be determined

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The following reaction includes 4 Elements.

• TRUE

• FALSE

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

To create a Precipitate, means to form a_____________.

• Liquid

• Semi-solid

• Solid

• Metal

A Student drew atomic models of four atomic models. Based on the drawings, which one is the least reactive?

• Chlorine, because it has three energy levels with seven electrons in the third level

• Gallium, because it has four energy levels with three electrons in the fourth level

• Neon, because it has two energy levels with eight electrons in the second level

• Tin, because it has five energy levels with four electrons in the fifth level

Tags

NGSS.MS-PS1-1

An atom of which element is represented by this model?

• Carbon (C)

• Neon (Ne)

• Sodium (Na)

• Boron (B)

Tags

NGSS.MS-PS1-1